Making it easy to follow protcols
When caring for calves it is important to follow feeding protocols. And, making it easy for everyone to comply with the protocols is a best management practice.
At this dairy different amounts of milk are fed to calves depending on their age and where they are in the weaning process.
Note the use of yellow, blue and red pails. Each color pail receives a different amount of milk each feeding. No signs are necessary - just look at the pail color.